/* ============================================
   cocoheat — article.css
   記事ページ共通スタイル
   ============================================ */

.article-main {
  padding: 100px 0 80px;
  min-height: 100vh;
}

.article-container {
  max-width: 860px;
}

/* ---- Breadcrumb ---- */
.article-breadcrumb {
  font-size: 0.82rem;
  color: var(--text-muted);
  margin-bottom: 32px;
}

.article-breadcrumb a {
  color: var(--accent-secondary);
}

.article-breadcrumb a:hover {
  text-decoration: underline;
}

/* ---- Article Header ---- */
.article-header {
  margin-bottom: 40px;
}

.article-cat {
  display: inline-block;
  padding: 4px 14px;
  border-radius: 100px;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  background: var(--accent-glow);
  color: var(--accent-secondary);
  margin-bottom: 16px;
}

.article-header h1 {
  font-size: clamp(1.5rem, 4vw, 2.2rem);
  font-weight: 900;
  line-height: 1.4;
  margin-bottom: 20px;
  letter-spacing: -0.02em;
}

.article-lead {
  font-size: 1rem;
  color: var(--text-secondary);
  line-height: 1.8;
  padding: 20px 24px;
  background: var(--bg-card);
  border-left: 4px solid var(--accent-primary);
  border-radius: 0 12px 12px 0;
}

/* ---- TOC ---- */
.article-toc {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 24px 28px;
  margin-bottom: 48px;
}

.toc-title {
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--text-muted);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: 14px;
}

.article-toc ol {
  padding-left: 20px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.article-toc a {
  color: var(--accent-secondary);
  font-size: 0.9rem;
}

.article-toc a:hover {
  text-decoration: underline;
}

/* ---- Article Body ---- */
.article-body section {
  margin-bottom: 56px;
}

.article-body h2 {
  font-size: 1.35rem;
  font-weight: 900;
  margin-bottom: 20px;
  padding-bottom: 14px;
  border-bottom: 2px solid var(--border);
}

.article-body h3 {
  font-size: 1.05rem;
  font-weight: 700;
  margin-bottom: 10px;
  color: var(--accent-secondary);
}

.article-body p {
  font-size: 0.95rem;
  color: var(--text-secondary);
  line-height: 1.85;
  margin-bottom: 16px;
}

.article-body strong {
  color: var(--text-primary);
}

/* ---- Tips Grid ---- */
.tips-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 16px;
  margin: 20px 0;
}

.tip-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 22px;
}

.tip-icon {
  font-size: 1.8rem;
  display: block;
  margin-bottom: 12px;
}

.tip-card h3 {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 8px;
}

.tip-card p {
  font-size: 0.85rem;
  color: var(--text-secondary);
  line-height: 1.7;
  margin: 0;
}

/* ---- Symptom Grid ---- */
.symptom-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 16px;
  margin: 20px 0;
}

.symptom-card {
  background: var(--bg-card);
  border-radius: 14px;
  padding: 22px;
}

.symptom-card h3 {
  font-size: 1rem;
  font-weight: 900;
  margin-bottom: 14px;
  color: var(--text-primary);
}

.symptom-card ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-bottom: 14px;
}

.symptom-card ul li {
  font-size: 0.85rem;
  color: var(--text-secondary);
  padding-left: 16px;
  position: relative;
}

.symptom-card ul li::before {
  content: '・';
  position: absolute;
  left: 0;
}

.symptom-card p {
  font-size: 0.82rem;
  margin: 0;
}

.symptom-card.stage1 { border-left: 4px solid #ffe44d; }
.symptom-card.stage2 { border-left: 4px solid #ff6600; }
.symptom-card.stage3 { border-left: 4px solid #ff2d2d; }

.symptom-action {
  font-size: 0.82rem;
  color: var(--accent-secondary);
  font-weight: 700;
}

/* ---- WBGT Table ---- */
.wbgt-table {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin: 20px 0;
}

.wbgt-row {
  display: grid;
  grid-template-columns: 100px 90px 1fr;
  align-items: center;
  gap: 16px;
  padding: 14px 20px;
  background: var(--bg-card);
  border-radius: 10px;
  font-size: 0.9rem;
}

.wbgt-range {
  font-family: 'Oswald', sans-serif;
  font-weight: 600;
  color: var(--text-primary);
}

.wbgt-level {
  font-weight: 700;
  text-align: center;
  padding: 4px 8px;
  border-radius: 6px;
}

.wbgt-action {
  font-size: 0.85rem;
  color: var(--text-secondary);
}

.wbgt-danger .wbgt-level { color: #ff2d2d; background: rgba(255,45,45,0.12); }
.wbgt-severe .wbgt-level { color: #ff6600; background: rgba(255,102,0,0.12); }
.wbgt-warning .wbgt-level { color: #ffaa00; background: rgba(255,170,0,0.12); }
.wbgt-caution .wbgt-level { color: #d4b800; background: rgba(255,228,77,0.12); }
.wbgt-safe .wbgt-level { color: #44cc88; background: rgba(68,204,136,0.12); }

/* ---- Steps List ---- */
.steps-list {
  display: flex;
  flex-direction: column;
  gap: 16px;
  margin: 20px 0;
}

.step-item {
  display: flex;
  gap: 16px;
  align-items: flex-start;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 18px 22px;
}

.step-num {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  min-width: 32px;
  background: var(--accent-primary);
  color: #fff;
  border-radius: 50%;
  font-weight: 900;
  font-size: 0.9rem;
}

.step-item strong {
  display: block;
  font-size: 0.95rem;
  color: var(--text-primary);
  margin-bottom: 6px;
}

.step-item p {
  font-size: 0.85rem;
  color: var(--text-secondary);
  margin: 0;
  line-height: 1.6;
}

/* ---- Info Box ---- */
.info-box {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-left: 4px solid var(--accent-secondary);
  border-radius: 0 12px 12px 0;
  padding: 18px 22px;
  margin: 20px 0;
}

.info-box strong {
  display: block;
  font-size: 0.9rem;
  color: var(--accent-secondary);
  margin-bottom: 10px;
}

.info-box ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.info-box ul li {
  font-size: 0.88rem;
  color: var(--text-secondary);
  padding-left: 16px;
  position: relative;
}

.info-box ul li::before {
  content: '✓';
  position: absolute;
  left: 0;
  color: var(--accent-secondary);
}

/* ---- Article List ---- */
.article-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin: 16px 0;
}

.article-list li {
  font-size: 0.92rem;
  color: var(--text-secondary);
  line-height: 1.7;
  padding-left: 20px;
  position: relative;
}

.article-list li::before {
  content: '▸';
  position: absolute;
  left: 0;
  color: var(--accent-primary);
}

.article-list strong {
  color: var(--text-primary);
}

/* ---- Article Note ---- */
.article-note {
  font-size: 0.85rem;
  color: var(--text-muted);
  background: var(--bg-secondary);
  padding: 12px 16px;
  border-radius: 8px;
  margin: 16px 0;
}

.article-note a {
  color: var(--accent-secondary);
}

.article-note a:hover {
  text-decoration: underline;
}

/* ---- Related Articles ---- */
.related-articles {
  margin: 56px 0;
  padding-top: 40px;
  border-top: 1px solid var(--border);
}

.related-articles h2 {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 20px;
}

.related-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
  gap: 12px;
}

.related-card {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 16px 18px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 12px;
  font-size: 0.85rem;
  color: var(--text-primary);
  transition: border-color 0.2s, transform 0.2s;
}

.related-card:hover {
  border-color: var(--border-hover);
  transform: translateY(-2px);
}

.related-icon {
  font-size: 1.4rem;
}

/* ---- City Quick Links ---- */
.city-quick-links {
  margin: 40px 0;
  padding: 28px 32px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 16px;
}

.city-quick-links h2 {
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 16px;
  color: var(--text-secondary);
}

.city-ql-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 20px;
}

.city-ql-grid a {
  padding: 8px 18px;
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: 100px;
  font-size: 0.88rem;
  color: var(--text-primary);
  transition: border-color 0.2s, color 0.2s;
}

.city-ql-grid a:hover {
  border-color: var(--border-hover);
  color: var(--accent-secondary);
}

.back-btn {
  display: inline-block;
  padding: 10px 24px;
  border: 1px solid var(--border);
  border-radius: 100px;
  font-size: 0.88rem;
  color: var(--text-secondary);
  transition: border-color 0.2s, color 0.2s;
}

.back-btn:hover {
  border-color: var(--accent-primary);
  color: var(--accent-primary);
}

/* ---- Callout Box ---- */
.article-callout {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-left: 4px solid var(--accent-secondary);
  border-radius: 0 12px 12px 0;
  padding: 18px 22px;
  margin: 20px 0;
}

.article-callout.warning {
  border-left-color: #ff6633;
}

.article-callout strong {
  display: block;
  font-size: 0.92rem;
  color: var(--accent-secondary);
  margin-bottom: 8px;
}

.article-callout.warning strong {
  color: #ff6633;
}

.article-callout p, .article-callout ul {
  font-size: 0.88rem;
  color: var(--text-secondary);
  line-height: 1.75;
  margin: 0;
}

/* ---- Related Section ---- */
.article-related {
  margin: 56px 0 0;
  padding-top: 36px;
  border-top: 1px solid var(--border);
}

.article-related h3 {
  font-size: 1rem;
  font-weight: 700;
  color: var(--text-muted);
  margin-bottom: 16px;
  letter-spacing: 0.04em;
}

.related-links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.related-link {
  padding: 10px 20px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 100px;
  font-size: 0.88rem;
  color: var(--text-primary);
  transition: border-color 0.2s, color 0.2s;
}

.related-link:hover {
  border-color: var(--accent-primary);
  color: var(--accent-secondary);
}

/* ---- Responsive ---- */
@media (max-width: 640px) {
  .article-main { padding: 90px 0 60px; }
  .wbgt-row { grid-template-columns: 90px 80px 1fr; gap: 10px; font-size: 0.82rem; }
  .symptom-grid { grid-template-columns: 1fr; }
  .tips-grid { grid-template-columns: 1fr; }
  .related-grid { grid-template-columns: 1fr 1fr; }
  .city-quick-links { padding: 20px; }
}